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New Member, New Gun, New Problems... (Sig 716)

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11 years 7 months ago - 11 years 7 months ago #21265 by Dabu
Replied by Dabu on topic New Member, New Gun, New Problems... (Sig 716)

Siscowet wrote:

Dabu wrote: Since nobody has mentioned it yet, don't store your magazines with ammo in them :)

I store at least two loaded for my readily accessible weapons for home defense, figure they are sacrificial at least. Rest are cleaned, oiled, and stacked in a humidity controlled environment, just like most my firearms.


I keep a few magazines loaded around the house, But I rotate loaded and unloaded mags every month for s :censored: 's giggles.
Last edit: 11 years 7 months ago by Dabu.

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11 years 7 months ago #21266 by 13fcolt
Replied by 13fcolt on topic New Member, New Gun, New Problems... (Sig 716)

OleCowboy wrote:

Dabu wrote: Since nobody has mentioned it yet, don't store your magazines with ammo in them :)


I have heard that before, do you have any basis for that? Thanks


Old gun myth. Springs don't wear out from being compressed, they wear out from being cycled. I used to do the ol' rotate out mags to give the springs a rest back in the day, only to find out that every time I did, that was one usage of the magazine I was not getting. There are a few write ups out there on the interweb supporting this. Either way it should be of little concern, till you start approaching the 20,000 round mark on one mag. Then It might be time to change a spring.

I keep all mine fully loaded...provided I have the ammo to go around.

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11 years 7 months ago #21270 by jtallen83
Replied by jtallen83 on topic New Member, New Gun, New Problems... (Sig 716)
:I-agree:
My father has an early S&W 59 he took out and shot for the first time since 1996 this last summer. The magazine had been fully loaded all those years but didn't miss a beat with what was in it or on the next 200 rounds he fired.
I have a few magazines I use for practice but the rest are loaded and ready, no point having extra if they are not loaded. :twocents:

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11 years 7 months ago - 11 years 7 months ago #21272 by Dabu
Replied by Dabu on topic New Member, New Gun, New Problems... (Sig 716)
:silly: Well it WAS a $7 1911 magazine.

Maybe higher quality mags won't have that problem. Maybe it's the type of steel. I don't know, but I'm not going to the lab to see if my mag springs are Chrome-Vanadium plated alloyed treated whateveryoucallit steel :)

I'll stay lucky and keep swaping them out. I don't think I need ALL my mags. Three should be enough unless the zombies come or something :)
Last edit: 11 years 7 months ago by Dabu.

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11 years 7 months ago #21275 by jtallen83
Replied by jtallen83 on topic New Member, New Gun, New Problems... (Sig 716)

Dabu wrote: :silly: Well it WAS a $7 1911 magazine.

Maybe higher quality mags won't have that problem. Maybe it's the type of steel. I don't know, but I'm not going to the lab to see if my mag springs are Chrome-Vanadium plated alloyed treated whateveryoucallit steel :)

I'll stay lucky and keep swaping them out. I don't think I need ALL my mags. Three should be enough unless the zombies come or something :)


I got a couple of those $7 gun show mags myself, feed lips were bent out of shape in no time :pinch: ended up smashing them with a hammer so they would never cause an issue again!

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11 years 7 months ago #21276 by 10-76
Replied by 10-76 on topic New Member, New Gun, New Problems... (Sig 716)
sigtalk.com/sig-sauer-rifles/6322-sig716...-lotsa-pix-info.html

Tear down walk thru...

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11 years 7 months ago #21282 by LebbenB
Replied by LebbenB on topic New Member, New Gun, New Problems... (Sig 716)
Good link. I'd been wanting to see pics of the Sig piston system.

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11 years 7 months ago #21287 by Moreau
Replied by Moreau on topic New Member, New Gun, New Problems... (Sig 716)

LebbenB wrote: Describe the failure to feed in more detail. Does the bolt simply not pick up a fresh round? Or does it partially pick a fresh round and the nose "hangs" at the feed ramp?

Does the bolt lock back on an empty magazine after the last round has been fired?

There's a possibility it's the mag that was sent with the rifle. Have you disassembled the mag then cleaned and oiled the spring? Checked for any nicks, burrs or anything that would bind the spring inside the mag body?

Edited to Add: How much lube are you using?


The FTF only occurs with the CBC and PMC ammo. The FTF is simply that a FTF. Upon ejection the bolt does not pick up another round, instead it just ejects, goes back, and the resets in the seated position just without another round. Sometimes the gun will not be cocked after this FTF, sometimes it will. The ejection pattern is consistent at about 3-4 ft. I've put 42 rounds of the Hornady through it without a single FTF and the bolt always locks back on this ammo after the last round. The PMC and CBC do not cause the bolt to lock back on the final round. The PMC and CBC have caused the rifle to jam, actually picking up a round and then failing to seat it correctly, this FTF is rare.

I've been using Rem Oil. I spray it with Rem oil and and reassemble the top receiver. I've tried leaving all of the sprayed oil on it as well as spraying it and then giving it a light wipe with my oil rag to remove excess.

I'll be disassembling the mag tonight and checking for issues. The seated mag has a little bit of "wiggle" to it, but it does't seem excessive.

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11 years 7 months ago #21290 by Sharkey
Replied by Sharkey on topic New Member, New Gun, New Problems... (Sig 716)
Using that light ammo would be my first thought so I agree with MrRaley. If it's working with the 150s and not with the lighter loads, I would get some that was even heavier (168s to 180s) and break that thing in right to loosen up the works a bit and then go back and try the lighter loads later on.

MrRaley's idea of loading 1 round into the mag and checking to see if the bolt locks back is excellent and I would think this could give you an answer about the light ammo concept very quickly.

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11 years 7 months ago #21291 by Siscowet
Replied by Siscowet on topic New Member, New Gun, New Problems... (Sig 716)

Moreau wrote:

LebbenB wrote: Describe the failure to feed in more detail. Does the bolt simply not pick up a fresh round? Or does it partially pick a fresh round and the nose "hangs" at the feed ramp?

Does the bolt lock back on an empty magazine after the last round has been fired?

There's a possibility it's the mag that was sent with the rifle. Have you disassembled the mag then cleaned and oiled the spring? Checked for any nicks, burrs or anything that would bind the spring inside the mag body?

Edited to Add: How much lube are you using?


The FTF only occurs with the CBC and PMC ammo. The FTF is simply that a FTF. Upon ejection the bolt does not pick up another round, instead it just ejects, goes back, and the resets in the seated position just without another round. Sometimes the gun will not be cocked after this FTF, sometimes it will. The ejection pattern is consistent at about 3-4 ft. I've put 42 rounds of the Hornady through it without a single FTF and the bolt always locks back on this ammo after the last round. The PMC and CBC do not cause the bolt to lock back on the final round. The PMC and CBC have caused the rifle to jam, actually picking up a round and then failing to seat it correctly, this FTF is rare.

I've been using Rem Oil. I spray it with Rem oil and and reassemble the top receiver. I've tried leaving all of the sprayed oil on it as well as spraying it and then giving it a light wipe with my oil rag to remove excess.

I'll be disassembling the mag tonight and checking for issues. The seated mag has a little bit of "wiggle" to it, but it does't seem excessive.

Now it really sounds like a problem of the BCG just not being cycled with enough force, if the hammer is not even getting cocked in some cases. Try the heavier ammo fix, but I am guessing there may be another reason for it as well. I am just not well versed enough in that system to give you any more suggestion. At what they go for, Sig should be rushing to get that fixed and cleared up.

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